MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

CHESAPEAKE ASSET MANAGEMENT LLC's Holding History (CIK: 0001079397)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 16,166 Value ($000) $1,702 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 17,150 Value ($000) $1,439 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 25,194 Value ($000) $1,994 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 25,510 Value ($000) $2,290 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 28,942 Value ($000) $2,879 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 28,902 Value ($000) $3,282 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 31,862 Value ($000) $3,945 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 32,072 Value ($000) $4,232 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 38,991 Value ($000) $4,251 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 38,732 Value ($000) $3,988 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 41,880 Value ($000) $4,833 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 44,674 Value ($000) $4,753 Avg Close $98.68 Range $92.86 - $105.40

Q4 2019

Shares 34,609 Value ($000) $3,148 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 34,609 Value ($000) $2,913 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 37,262 Value ($000) $3,124 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 37,412 Value ($000) $3,112 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 49,482 Value ($000) $3,781 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 50,767 Value ($000) $3,601 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 58,102 Value ($000) $3,527 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 68,572 Value ($000) $3,735 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 70,144 Value ($000) $3,947 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 73,794 Value ($000) $4,725 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 74,144 Value ($000) $4,752 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 74,900 Value ($000) $4,759 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 75,325 Value ($000) $4,434 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 75,425 Value ($000) $4,707 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 75,425 Value ($000) $4,345 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 83,425 Value ($000) $4,414 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 83,425 Value ($000) $4,407 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 83,812 Value ($000) $4,139 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 83,812 Value ($000) $4,771 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 83,812 Value ($000) $4,818 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 83,812 Value ($000) $4,760 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 84,362 Value ($000) $5,000,979 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 84,362 Value ($000) $4,880 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 84,362 Value ($000) $4,789 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 70,112 Value ($000) $3,509 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 70,112 Value ($000) $3,338 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 71,662 Value ($000) $3,329 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	16,166	$1,702	$93.24	$81.31 - $107.59
Q3 2025	17,150	$1,439	$81.01	$75.27 - $86.24
Q2 2025	25,194	$1,994	$77.39	$71.26 - $87.25
Q1 2025	25,510	$2,290	$90.12	$78.10 - $99.24
Q4 2024	28,942	$2,879	$98.70	$90.33 - $109.75
Q3 2024	28,902	$3,282	$112.96	$105.16 - $123.40
Q2 2024	31,862	$3,945	$121.72	$114.80 - $127.87
Q1 2024	32,072	$4,232	$115.77	$102.41 - $125.66
Q4 2023	38,991	$4,251	$96.81	$92.34 - $102.48
Q3 2023	38,732	$3,988	$99.84	$95.67 - $106.04
Q2 2023	41,880	$4,833	$104.47	$97.02 - $109.95
Q1 2023	44,674	$4,753	$98.68	$92.86 - $105.40
Q4 2019	34,609	$3,148	$67.55	$62.89 - $73.10
Q3 2019	34,609	$2,913	$65.47	$61.22 - $68.01
Q2 2019	37,262	$3,124	$62.14	$55.86 - $67.34
Q1 2019	37,412	$3,112	$60.29	$55.35 - $64.55
Q4 2018	49,482	$3,781	$56.50	$50.42 - $61.17
Q3 2018	50,767	$3,601	$50.65	$45.40 - $54.60
Q2 2018	58,102	$3,527	$44.52	$39.72 - $47.34
Q1 2018	68,572	$3,735	$42.25	$39.59 - $47.54
Q4 2017	70,144	$3,947	$43.00	$39.63 - $47.96
Q3 2017	73,794	$4,725	$46.68	$44.87 - $49.08
Q2 2017	74,144	$4,752	$46.54	$45.06 - $48.72
Q1 2017	74,900	$4,759	$46.06	$42.70 - $48.31
Q4 2016	75,325	$4,434	$44.08	$41.83 - $46.98
Q3 2016	75,425	$4,707	$43.73	$40.74 - $45.59
Q2 2016	75,425	$4,345	$39.48	$37.06 - $41.09
Q1 2016	83,425	$4,414	$36.03	$33.60 - $37.88
Q4 2015	83,425	$4,407	$36.77	$33.58 - $38.73
Q3 2015	83,812	$4,139	$38.40	$31.46 - $41.36
Q2 2015	83,812	$4,771	$40.23	$38.42 - $42.17
Q1 2015	83,812	$4,818	$40.30	$37.94 - $43.13
Q4 2014	83,812	$4,760	$39.35	$35.32 - $41.85
Q3 2014	84,362	$5,000,979	$39.37	$37.12 - $41.03
Q2 2014	84,362	$4,880	$37.96	$36.06 - $39.67
Q1 2014	84,362	$4,789	$35.76	$32.43 - $37.92
Q4 2013	70,112	$3,509	$31.29	$29.09 - $32.94
Q3 2013	70,112	$3,338	$30.97	$29.74 - $31.75
Q2 2013	71,662	$3,329	$30.02	$28.02 - $32.11